How can I get BDM Values from Initiator form to Dept Manager Form

I have created a process using BDM,
At First Step:
1. Initiated user fills the form and submits, it goes to his Manager.
2. Manager reviews the form, and I am using ../{{context.myTest_ref.link}} to get BDM values from User submitted form, and now Manager Submits the form and it goes to his Dept Manager.
3. Dept Manager reviews and when I am using ../{{context.myTest_ref.link}} I am unable to get form values submitted by Initiated User, I am only getting Manager choosen form fields, not from Initiated form .

How can I get form values from Initiated user Form to Dept Manager form? Please help..

Bonitasoft helps innovative companies worldwide reinvent, automate and gain deep visibility into their business processes. Bonitasoft's Bonita Digital Process Automation platform enables collaboration between professional and citizen developers to rapidly deliver automation projects and applications using best-of-breed DevOps methodologies and tools.
With an ecosystem of more than 150.000 members and customers in 75+ countries, Bonitasoft provides the most widely used open source and low-code platform for business process automation.